Question

Pupa occurs in the life cycle of
A) Cockroach
B) Housefly
C) Honey Bee
D) Earthworm

Answer 1

Hint:A pupa is the life stage of some insects undergoing transformation. Pupa stage takes place in holometabolous insects. It is the third stage of the life cycle of the insect.

Complete answer:
A pupa is the life process between embryonic and mature stages of certain insects undergoing transformation. In insects with full metamorphosis, the pupal stage begins the larval stage and defines adulthood. The pupa is a non-feeding, or highly active, typically sessile stage, as in mosquitoes. The adult structures of the insect are formed during the pupal stage, whereas the larval structures are broken down. From imaginary discs, the adult structures evolve.
Now, let us find the solution from the options-
>The pupal phase comes only in holometabolous insects, i.e. those that go through four life stages; embryo, larva, pupa, and imago undergoing a complete metamorphosis. Housefly, mosquito, wasps, moths, etc, for example,
>The insect's adult structures are established at the period of pupation, when the larval structures are broken.
>Cockroach, honey bee, and earthworm are not holometabolous insects so they do not have the pupa stage in their life cycle.

Thus, the correct answer is option (B) House Fly.

Note:Depending on the temperature and the species of insect, the pupal stage can last for weeks, months or even years. Over the winter, pupae typically remain inactive in temperate climates, although in the tropics, pupae normally become active during the dry season.